MSP430F47126: Effect of power supply noise on SD16_A

rei

Part Number: MSP430F47126

Hi,

My customers are designing an application using MSP430F47126.
Vref uses a low-noise power supply because it affects the accuracy of the ADC. However they want to use cheap power supply for DVCC and AVCC.

Does the accuracy of SD16_A change due to the power supply noise of DVCC or AVCC?

I'm sorry in a strange question.

Regards, Rei

over 4 years ago

0 Yiding Luo over 4 years ago

TI__Expert 5490 points

Hello Rei,

Thanks for your post.

We will look into it and get back to you.

Thanks,

Yiding

0 Yiding Luo over 4 years ago

TI__Expert 5490 points

Hello Rei,

I think this depends on what is the requirement of the ADC accuracy and resolution. Noise Vref will affect the accuracy of your ADC measurement.

Thanks,

Yiding

**Attention** This is a public forum

MSP low-power microcontrollers

MSP low-power microcontroller forum

MSP430F47126: Effect of power supply noise on SD16_A